/Engine/Source/Editor/KismetCompiler/Public/KismetCompilerMisc.h
Intended to avoid errors that come from checking for external member (function, variable, etc.) dependencies. This can happen when a Blueprint was saved without having new members compiled in (saving w/out compiling), and a Blueprint that uses those members is compiled-on-load before the uncompiled one. Any valid errors should surface later, when the dependant Blueprint's bytecode is recompiled.
static bool IsMissingMemberPotentiallyLoading ( const [UBlueprint](API\Runtime\Engine\Engine\UBlueprint) * SelfBlueprint, const [UStruct](API\Runtime\CoreUObject\UObject\UStruct) * MemberOwner )